GMC MDI 2 User Manual page 28

2.
Place the Self Test Adapter on the end of the SAE J1962 DLC cable.
3.
Connect the adapter cable to a 12V power source by either connecting the adapter
to a vehicle data connector or by plugging in the 12V DC source.
4.
Connect your MDI 2 to the MDI Manager using a USB cable.
5.
Connect your MDI 2 to the MDI Manager using the Connect button in the Explorer
tab.
6.
Select the Cable Test button from the Help tab within the MDI Manager software.
7.
The MDI Manager software will inform you to ensure the self test adapter is
connected to the end of the DLC cable with 12V applied.
8.
The MDI Manager software will run a series of tests on the DLC cable. The results
will be displayed as PASS or FAIL.
Wireless Communication with Network Unsuccessful using DWA131 E1 dongle
The D-Link DWA131 E1 dongle is not intended to be used for PC wireless communication to a
network. The DWA131 E1 dongle is only intended to be used with the MDI 2 for Point-to-Point
communication or Infrastructure wireless communication.
Recommendations:
Make sure you do not have two D-Link wireless dongles connected to the PC.
Make sure you are not trying to connect the PC to your dealership network using the DWA131
E1 dongle.
MDI Manager Displays the Yellow Icon over the MDI 2 after previous use
There may be instances when Windows does not recognize the installation of the DWA131 E1
wireless adapter. In these cases, Windows may create a new wireless profile instead of using
the existing one already stored on the PC. The yellow icon displayed over your MDI 2 instructs
you to plug in the USB cable between the MDI 2 and the PC.
Recommendations:

Always use Windows to safely Eject the wireless adapter before physically removing it
from your PC.

Unplug and then re-install your wireless adapter. Windows will attempt to recognize the
wireless adapter. If successful, the yellow icon will disappear and the MDI 2 will be
ready for wireless Point-to-Point communication.
PC Application is Unable to Communicate with the MDI 2 over USB
MDI Manager Software must be installed on the PC, and the MDI 2 must be powered up before
it will communicate. The MDI 2 must be configured through USB before it will communicate
using any other connection types.
If other applications including the MDI Manager are able to connect to the MDI 2 then
o Check the Windows Firewall settings to see if the application is being
blocked.
Multiple Diagnostic Interface 2 User Guide
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